Dyeing technology of cation modified polyester

A cationic modifier and cationic technology, applied in the direction of dyeing, textile and papermaking, fiber processing, etc., can solve the problems of long dyeing time, unstable color, and easily damaged products, so as to shorten the dyeing time and improve the dyeing rate. , the effect of reducing the strength loss

Inactive Publication Date: 2018-10-26
ANHUI ZHAOBAO TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of the two-bath dyeing process are: long process flow, long dyeing time, large water consumption, energy consumption, large amount of sewage discharge, and easy damage to the product, product fluffing and pilling, and unstable color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Embodiments of the present invention: a dyeing process of cationic modified polyester, comprising the following steps:

[0017] (1) Polyester fiber modification: Add cationic modifier to liquid ammonia, slowly add NaOH aqueous solution to liquid ammonia, stir evenly to generate liquid ammonia-water blend solution, add polyester fiber to liquid ammonia-water blend solution After soaking in the medium, take it out and dry it, wash it with water, and dry it again to obtain cationic modified polyester;

[0018] (2) Preparation of dye liquor: Mix the powders of cobalt sulfate, ferrous sulfate and sodium sulfate to form a mixed powder, add deionized water to the mixed powder, keep the temperature at 30~55°C, and stir for 0.5-1.5h to get a mixed solution , add glycerin to the mixed solution and mix evenly, then add diphenyl ether tetra-acid dianhydride, fatty alcohol polyoxyethylene ether, trimethylolpropane, acetanilide and ethylenediaminetetraacetic acid disodium, and mainta...

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Abstract

The invention discloses a dyeing technology of cation modified polyester. The dyeing technology comprises the following steps: (1) modifying polyester fibers; (2) preparing a dyeing solution; (3) dyeing; (4) carrying out post-treatment. Compared with the prior art, the dyeing technology disclosed by the invention has the beneficial effects that the dyeing time of the cation modified polyester is shortened and the dyeing efficiency is improved; a catalyst, a modifying agent, a diffusion agent and a surfactant are added into a dyeing solution and can form a net-shaped structure in a polyester fabric, so that the effect of improving the molecule functionality is realized; a condition that the dyeing effect becomes poor, caused by injuries in a dyeing process of the fabric, is avoided; the dyeing rate is improved and low-salt dyeing is realized; meanwhile, the leveling property and the color fastness are improved, the strength loss of the fabric is reduced, and the softness and antistaticproperty of the polyester fabric are improved.

Description

technical field [0001] The invention relates to the field of fabric dyeing and finishing, in particular to a dyeing process of cationic modified polyester. Background technique [0002] With the promotion and application of new cationic modified polyester raw materials, its fabrics not only have good gloss, air permeability and water absorption, but also have low-temperature dyeability. There are more and more cationic modified polyester and cationic modified polyester blended with other fibers, doubling and interweaving fabrics on the market. In general, the dyeing of cationic modified polyester and polyester blended, paralleled and interwoven yarns and fabrics is dyed by two-bath method, that is, conventional polyester is dyed with disperse dyes, and cationic modified polyester is dyed with cationic dyes. The main problems of the two-bath dyeing process are: long process flow, long dyeing time, large water consumption, energy consumption, large amount of sewage discharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/41D06P1/44D06P1/48D06P1/613D06P1/62D06P1/647D06P1/651D06P1/66D06P1/673D06P3/52D06M13/463D06M101/32
CPCD06P1/41D06M13/463D06M2101/32D06P1/445D06P1/48D06P1/6133D06P1/625D06P1/647D06P1/65118D06P1/65143D06P1/66D06P1/67341D06P1/6735D06P3/522
Inventor 谈杰章磊汪健东
Owner ANHUI ZHAOBAO TEXTILE TECH CO LTD
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